How to draw squares in javascript: first create an HTML sample file; then add a canvas tag to the body; then add a script tag to the head for entering javascript code; finally draw the square through the draw method. Can.

The operating environment of this article: windows7 system, javascript1.8.5&&html5 version, Dell G3 computer.

Insert javascript into html to draw a rectangle

      
  
canvas中画矩形
   

[Recommended learning:javascript advanced tutorial]

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